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Finding the Fourth Proportional to 284,187.93, 392,179.38 and 156,863.58

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Solution

The fourth proportional to 284,187.93, 392,179.38 and 156,863.58 is: 216,471.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,187.93 : 392,179.38 = 156,863.58 : x
  2. Step 2: Convert to fraction form
    284,187.93/392,179.38 = 156,863.58/x
  3. Step 3: Cross multiply
    284,187.93x = 392,179.38 × 156,863.58
  4. Step 4: Simplify right side
    284,187.93x = 61,518,661,548.98
  5. Step 5: Solve for x
    x = 61,518,661,548.98/284,187.93
  6. Step 6: Final answer
    x = 216,471.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.